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BOSTON MARATHON 2025

Michael Jan Perez

Bib: 12472•M

NV

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 36%
Gender (Male)
#0 / 16105
Top 49%
Masters (Masters Men)
#0 / 10463
Top 38%
Division (M45-49)
#0 / 2386
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:34/mi
23:29
↑ 97↓ 3451.5%
10K· 6.21 mi
7:30/mi
46:46
↑ 79↓ 1380.4%
15K· 9.32 mi
7:19/mi
1:09:31
↑ 67↓ 78
20K· 12.43 mi
7:29/mi
1:32:47
↑ 106↓ 860.1%
Half· 13.11 mi
7:53/mi
1:38:10
↑ 19↓ 370.5%
25K· 15.53 mi
7:44/mi
1:56:55
↑ 66↓ 880.2%
30K· 18.64 mi
7:53/mi
2:21:26
↑ 181↓ 1480.2%
20M
8:01/mi
2:32:19
↑ 64↓ 500.2%
21M
8:26/mi
2:40:45
↑ 106↓ 241.6%
35K· 21.75 mi
7:51/mi
2:46:37
↑ 17↓ 861.7%
23M
7:42/mi
2:56:16
↑ 23↓ 630.6%
24M
7:21/mi
3:03:37
↓ 821.3%
40K· 24.85 mi
7:36/mi
3:10:07
↓ 200.3%
25.2M
8:42/mi
3:13:07
↑ 13↓ 160.2%
Finish· 26.22 mi
7:10/mi
3:20:25
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:10
Pace7:29 /mi
2nd Half
Distance13.11 mi
Time1:42:15
Pace7:48 /mi
📊Positive Split: 4.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:1923:297:3423:29
7:34
-
10K
6.21 mi11:14:3646:467:3223:17
7:30
-0:04
15K
9.32 mi11:37:211:09:317:2822:45
7:19
-0:11
20K
12.43 mi12:00:371:32:477:2823:16
7:29
+0:10
Half
13.11 mi12:06:001:38:107:295:23
7:53
+0:24
25K
15.53 mi12:24:451:56:557:3218:45
7:44
-0:09
30K
18.64 mi12:49:162:21:267:3524:31
7:53
+0:09
20M
20.00 mi13:00:092:32:197:3710:53
8:01
+0:08
21M
21.00 mi13:08:352:40:457:398:26
8:26
+0:25
35K
21.75 mi13:14:272:46:377:405:52
7:51
-0:35
23M
23.00 mi13:24:062:56:167:409:39
7:42
-0:09
24M
24.00 mi13:31:273:03:377:397:21
7:21
-0:21
40K
24.85 mi13:37:573:10:077:396:30
7:36
+0:15
25.2M
25.20 mi13:40:573:13:077:403:00
8:42
+1:06
Finish
26.22 mi13:48:153:20:257:397:18
7:10
-1:32

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

7:10 /mi

Average Pace

7:39 /mi

Slowest Pace

8:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:23:57

42% of race

Time at Steady Pace

1:34:09

47% of race

Time at Slower Pace

22:19

11% of race

Average Pace: 7:39 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:51:1923:297:3423:29
7:34
#12715
10K
6.21 mi11:14:3646:467:3223:17
7:30
#12354
15K
9.32 mi11:37:211:09:317:2822:45
7:19
#11595
20K
12.43 mi12:00:371:32:477:2823:16
7:29
#11360
Half
13.11 mi12:06:001:38:107:295:23
7:53
#11531
25K
15.53 mi12:24:451:56:557:3218:45
7:44
#11549
30K
18.64 mi12:49:162:21:267:3524:31
7:53
#11333
20M
20.00 mi13:00:092:32:197:3710:53
8:01
#11214
21M
21.00 mi13:08:352:40:457:398:26
8:26
#11101
35K
21.75 mi13:14:272:46:377:405:52
7:51
#11087
23M
23.00 mi13:24:062:56:167:409:39
7:42
#10845
24M
24.00 mi13:31:273:03:377:397:21
7:21
#10631
40K
24.85 mi13:37:573:10:077:396:30
7:36
#10471
25.2M
25.20 mi13:40:573:13:077:403:00
8:42
#10447
Finish
26.22 mi13:48:153:20:257:397:18
7:10
#10268
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi127159505950510161(Top 36%)8174(Top 51%)8174(Top 343%)
10K6.21 mi3.10 mi12354+3619326+1799326+17912028(Top 42%)9160(Top 57%)9160(Top 384%)
15K9.32 mi3.11 mi11595+7598943+3838943+38310161(Top 36%)8174(Top 51%)8174(Top 343%)
20K12.43 mi3.11 mi11360+2358795+1488795+14810651(Top 37%)8332(Top 52%)8332(Top 349%)
Half13.11 mi0.68 mi11531-1718871-768871-7614917(Top 53%)10280(Top 64%)10280(Top 431%)
25K15.53 mi2.42 mi11549-188839+328839+3211783(Top 41%)8734(Top 54%)8734(Top 366%)
30K18.64 mi3.11 mi11333+2168663+1768663+17610555(Top 37%)7959(Top 49%)7959(Top 334%)
20M20.00 mi1.36 mi11214+1198564+998564+9910489(Top 37%)7782(Top 48%)7782(Top 326%)
21M21.00 mi1.00 mi11101+1138472+928472+9210035(Top 35%)7386(Top 46%)7386(Top 310%)
35K21.75 mi0.75 mi11087+148444+288444+2811086(Top 39%)7897(Top 49%)7897(Top 331%)
23M23.00 mi1.25 mi10845+2428287+1578287+1577933(Top 28%)6127(Top 38%)6127(Top 257%)
24M24.00 mi1.00 mi10631+2148146+1418146+1416724(Top 24%)5371(Top 33%)5371(Top 225%)
40K24.85 mi0.85 mi10471+1608044+1028044+1027436(Top 26%)5694(Top 35%)5694(Top 239%)
25.2M25.20 mi0.35 mi10447+248013+318013+319952(Top 35%)6928(Top 43%)6928(Top 290%)
Finish26.22 mi1.02 mi10268+1797882+1317882+1316810(Top 24%)5220(Top 32%)5220(Top 219%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21story building
+97ft-345ft

Overall

10161

Males

8174

M45-49

8174

5K→10K

3.1 - 6.2 mi

Top 42%
×5story building
+79ft-138ft

Overall

12028

Males

9160

M45-49

9160

10K→15K

6.2 - 9.3 mi

Top 36%
×3story building
+67ft-78ft

Overall

10161

Males

8174

M45-49

8174

15K→20K

9.3 - 12.4 mi

Top 37%
×5story building
+106ft-86ft

Overall

10651

Males

8332

M45-49

8332

20K→Half

12.4 - 13.1 mi

Top 53%
×2story building
+19ft-37ft

Overall

14917

Males

10280

M45-49

10280

Half→25K

13.1 - 15.5 mi

Top 41%
×4story building
+66ft-88ft

Overall

11783

Males

8734

M45-49

8734

25K→30K

15.5 - 18.6 mi

Top 37%
×9story building
+181ft-148ft

Overall

10555

Males

7959

M45-49

7959

30K→20M

18.6 - 20.0 mi

Top 37%
×5story building
+64ft-50ft

Overall

10489

Males

7782

M45-49

7782

20M→21M

20.0 - 21.0 mi

Top 35%
×8story building
+106ft-24ft

Overall

10035

Males

7386

M45-49

7386

21M→35K

21.0 - 21.8 mi

Top 39%
×7story building
+17ft-86ft

Overall

11086

Males

7897

M45-49

7897

35K→23M

21.8 - 23.0 mi

Top 28%
×5story building
+23ft-63ft

Overall

7933

Males

6127

M45-49

6127

23M→24M

23.0 - 24.0 mi

Top 24%
×6story building
+12ft-82ft

Overall

6724

Males

5371

M45-49

5371

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

7436

Males

5694

M45-49

5694

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

9952

Males

6928

M45-49

6928

25.2M→Finish

25.2 - 26.2 mi

Top 24%
×2story building
+22ft-21ft

Overall

6810

Males

5220

M45-49

5220

Passing Analysis

Category:
Athletes Passed
3345
Passed By
898
Net Change
+2447
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12715
5K → 10K501140+361#12715#12354
10K → 15K76910+759#12354#11595
15K → 20K30570+235#11595#11360
20K → Half8179-171#11360#11531
Half → 25K159177-18#11531#11549
25K → 30K327111+216#11549#11333
30K → 20M16748+119#11333#11214
20M → 21M15643+113#11214#11101
21M → 35K6652+14#11101#11087
35K → 23M25412+242#11087#10845
23M → 24M2206+214#10845#10631
24M → 40K17111+160#10631#10471
40K → 25.2M5026+24#10471#10447
25.2M → Finish19213+179#10447#10268
TOTALS3345898+2447
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing